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HENRY SLAT TER, 0F COVINGTUN, KENTUCKY.

Letters Patent No. 61,271, dateol January 15, 1867.

IMPROVED GOMPGSITIOH FUEL.

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TO WHOM 1T MAY OONOERNz Be it known that I, HENRY SLATTER, of Covington, Kenton county, Kentucky, have invented :1, new and i usel'ul Composition Fuel; and I do hereby declare the following to be a full, clear, and exact description thereof.

I take of mineral tar, such as that obtained from gas or petroleum works, and dilute the same with quick lime iblld water. I then take fine cOuLdust, and mix: intimately therewith an equal quantity of saw-dust, charcoalclust, chn-fi', or any other finely comminuted vegeta-ble tissue. To this, for most purposes, I add of coarse'scnd,

about ten per cent. of the whole, for the purpose of returning combustion and retaining the heat, and add to the whole sufficient of the diluted tar for abond.

I do not ilesire to restrict myself to any precise proportions, but may add u large proportion of the tar solution for kindling; or of cool and saw-dust, and even send, for a. permanent fire. For the latter purpose the composition will be moulded into convenient blocks or bricks; and for the former, into strips about the size of ones finger.

The use of lime-water to dissolve the tar is believed to be new in this connection, and enables the tar to perinente freely among the interstices of the dust, and in setting to impart solidity-and compactness to the It a so mo'lerates the too active combustion of the tar, and enables the whole to be :z'llorcleii at a very low cost.

I claim as new, and of my invention The composition fuel, composed and compounded as set forth.

In testimony of which invention, I hereunto set my hand.

HENRY SLATTER.

Witnesses:

GEO. H. Kmsu'r, JAMES H. LAYMAN. 

